Update azure-arm-visualstudio to 2.1.0-preview
Update azure-arm-visualstudio to 2.1.0-preview

Azure/azure-sdk-for-node,xingwu1/azure-sdk-for-node,xingwu1/azure-sdk-for-node,Azure/azure-sdk-for-node,xingwu1/azure-sdk-for-node,Azure/azure-sdk-for-node